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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 15 motors that fit and appear to have enough thrust (730 motors didn't fit, 46 motors failed safety checks). 60 motor had thrust curves available and 123 flight simulations were performed. Browse the motors that did and didn't work right here or download the results as a spreadsheet.

The Rocket

Rocket Name:   otto1
Owner: otto burgess
Body Diameter: 7.50in
Dry Weight: 120.00lb
MMT Diameter: 98.0mm
MMT Length: 45.00in
CD: 1.10

Motors That Work

These motors fit your rocket and appear to have enough thrust to lift it safely. If thrust curves are available, a quick simulation has been run to give a rough idea of the performance of your rocket on this motor. We encourage you to run a more complete simulation with any motor you plan to use; see the simulators page for more info.

  Motor Weight Launch Velocity Accel Altitude Time Delay
OK Cesaroni L3150 130.43lb 54ft/s 220ft/s 5.3G 872ft 8.0s 6s
OK AeroTech M4500 134.60lb 67ft/s 343ft/s 8.4G 1,856ft 11.2s 10s
OK Cesaroni M4770 134.34lb 67ft/s 352ft/s 8.8G 1,894ft 11.3s 10s
OK Cesaroni M6400 137.46lb 81ft/s 417ft/s 11.1G 2,451ft 12.5s 11s
OK AeroTech M2500 137.78lb 48ft/s 377ft/s 3.7G 2,605ft 14.1s 10s
OK AeroTech M6000 138.65lb 74ft/s 455ft/s 10.7G 2,849ft 13.5s 12s
OK Cesaroni M3400 137.88lb 55ft/s 430ft/s 5.4G 2,918ft 14.3s 11s
OK Cesaroni N10000 141.87lb 104ft/s 506ft/s 17.7G 3,196ft 13.9s 13s
OK Loki N3800 145.57lb 63ft/s 511ft/s 6.7G 3,944ft 16.1s 13s
OK Cesaroni N2500 145.72lb 53ft/s 485ft/s 4.6G 4,293ft 17.7s 12s
OK Cesaroni N2850 145.77lb 50ft/s 518ft/s 4.2G 4,385ft 17.8s 13s
OK AeroTech N3300 146.57lb 49ft/s 538ft/s 5.2G 4,425ft 17.6s 13s
OK Cesaroni N5600 144.87lb 74ft/s 603ft/s 9.3G 4,585ft 16.8s 14s
OK Cesaroni N3180 146.89lb 53ft/s 550ft/s 4.8G 4,643ft 18.0s 13s
OK Cesaroni N2501 149.34lb 50ft/s 525ft/s 4.3G 4,952ft 19.0s 13s

Don't like the units? Login to set your preferences. Don't understand the results? See the motor guide help page.

Motors That Fail

These motors fit your rocket, but failed one safety check or another. They may actually work, but you should use them only with caution. We encourage you to run a more complete simulation to verify flight safety; see the simulators page for more info.

  Motor Reason
failedG AeroTech K680 speed at end of launch guide too slow (16ft/s)
failedG AeroTech K650 speed at end of launch guide too slow (14ft/s)
failedG Cesaroni K1620 speed at end of launch guide too slow (37ft/s)
failed5 AeroTech K458 average thrust fails 5:1 thrust/weight ratio (1:1)
failedG AeroTech K1999 speed at end of launch guide too slow (40ft/s)
failed5 AeroTech L339 average thrust fails 5:1 thrust/weight ratio (1:1)
failedG AeroTech L1300 speed at end of launch guide too slow (30ft/s)
failedG AeroTech L400 speed at end of launch guide too slow (11ft/s)
failedG AeroTech L952 speed at end of launch guide too slow (19ft/s)
failedG AeroTech L2500 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni L610 speed at end of launch guide too slow (18ft/s)
failedG AeroTech L1500 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni M1560 speed at end of launch guide too slow (33ft/s)
failedG AeroTech M1075 speed at end of launch guide too slow (23ft/s)
failedG AeroTech M1305 speed at end of launch guide too slow (33ft/s)
failedG AeroTech M1600 speed at end of launch guide too slow (34ft/s)
failedG AeroTech M1340 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni M520 speed at end of launch guide too slow (20ft/s)
failedG Cesaroni M1060 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni M2505 speed at end of launch guide too slow (46ft/s)
failed5 Gorilla M1565 average thrust fails 5:1 thrust/weight ratio (2:1)
failedG Cesaroni M1520 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni M1290 speed at end of launch guide too slow (29ft/s)
failedG AeroTech M2400 speed at end of launch guide too slow (46ft/s)
failedG AeroTech M1419 speed at end of launch guide too slow (27ft/s)
failedG AeroTech M2100 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni M1790 speed at end of launch guide too slow (34ft/s)
failedG AeroTech M1800 speed at end of launch guide too slow (36ft/s)
failedG AeroTech M1845 speed at end of launch guide too slow (41ft/s)
failedG AeroTech M2000 speed at end of launch guide too slow (40ft/s)
failedG AeroTech M750 speed at end of launch guide too slow (21ft/s)
failedG Gorilla M1025 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni M1800 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni M1890 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni M1450 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni M795 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni N1800 speed at end of launch guide too slow (38ft/s)
failedG AeroTech M1939 speed at end of launch guide too slow (38ft/s)
failedG AeroTech N2220 speed at end of launch guide too slow (44ft/s)
failedG Gorilla N2717 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni N2600 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni N2200 speed at end of launch guide too slow (43ft/s)
failedG AeroTech N2000 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni N1100 speed at end of launch guide too slow (44ft/s)
failedG AeroTech N1000 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni N1975 speed at end of launch guide too slow (33ft/s)

G These simulations were run with a launch guide length of 10ft (rod, rail or tower). If this is not correct, launch guide lengths can be specified for your saved rockets. (The minimum velocity required is approximately 15m/s or 50ft/s.)

5 The 5:1 thrust-to-weight ratio check is a useful rule of thumb, but it does break down for motors with unusual thrust curves. For example, motors with a high initial thrust and a long tail-off may fail this test but still be safe for use.

Download the Results

The data is presented in a compact form in the tables above, broken down by motors that worked and those that did not. If you would like to analyze the data further, this section provides download links for files in a generic spreadsheet format (comma-separated value, or CSV) that can be opened with almost any spreadsheet program.

CSV Excel   Download full details of the simulation runs with the various motors:
that worked, that failed, or all of them.
 
RockSim   Download the list of motors that fit your rocket into a batch for use with SMARTSim. (See the Simulators page for more info.)

You should download these files to your machine and then open them. Normally, clicking the link will prompt you to do this. However, if your browser insists on opening the file as plain text, you can right-click (control-click on the Mac) on the link and chose Save File As (or similar).

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